Gas and oil engine



A. G. PACE.

GAS AND OIL ENGINE.

APPLICATION man APR.2B, 1920.

1,402,718 Patented; Jan. 24,1222.

3 SHEETSSHEET I.

WITNESSES: I INVENTOR.Q a a A. G. PACE.

GAS AND OIL ENGINE.

APPLICATION FILED APR. 28. 1920.

139%? 8% Patented Jan. 24, 1922 3 SHEETSSHEET 2.

INVENTOR. M

A. G. PACE.

GAS AND OIL ENGINE.

APPLICATION FILED APR. 28. 1920.

IAMJH 8., Patented Jan. 24, 1922.

@FFTQE.

AUGUSTUS G. TACE, 01F SEATTLE, WASEINGTQN.

GM AND OIL ENGINE.

moans.

To all whom it may concern:

Be it known that I, AUGUSTUS G. PACE, a citizen of the United States, residin in the city of Seattle, in the county of 1 ing and State of Washington, have invented certain new and useful Tmprovements in Gas and Oil Engines, of which the following is a specification. y

This invention relates to gas and oil engines, the object of the invention being to provide an improved engine in which the exhaust is utilized in conjunction with fresh combustible, whereby increased powers and material economy are obtained.

A further object of the inventionis the provision of an improved organization of mechanism in which the heat of the exhaust is used to gasify the heavy oil by being drawn into the piston cylinder then carried into the fresh oil and air.

A further object of the invention is the provision of an. improved engine which may be started by means of one fluid and after starting run by means of another fluid comprising a mixture of oil and air commingled with a mixture comprising the exhaust. r

A further object of the invention is an improved engine so organized that during the major part of one stroke of the piston combustible material will be drawn into the cylinder and during the rest of such stroke e\haustv will be drawn in to be compressed .with such fresh material prior to ignition, thus adding to the charge from the begin ning of the compression stroke of the pistons and increasing the weight of the char e and increasing the, mean temperature of t e working fluidby the presence of hot eX- haust gases which causes the mixture to have less fresh air, thereby increasing the temperature of the explosion, also utilizing the unburnt products of combustion which form part of the exhaust.

In the drawings accompanying and forming part of this specification, Fig. 1 is a top or plan view of this improved engine, Fig. 2 is a front'elevation thereof, parts being broken away to more clearly illustrate the subject matter of the present improvement. Fig. 3 is a vertical'section view taken in line A. A. Similar charactersjof reference designate corresponding parts of all the figures of the drawings.

The present invention is in part an improvement upon the subject matter shown Specification of Letters Patent.

Patented Jan. 24, 1922..

Application filed April 28, 1920. Serial No. 377,217.

and described in my Patent No. 963,318,

dated July 5, 1910. As a preface to a furpistons in one direction fresh combustibl material, such as air and oil, will be drawn in the cylinder and then during the remainder of the stroke of such piston in the same direction exhaust products of combustlon previously driven from the cylinder w1ll be drawn into the cylinderwith the fresh combustible material previously drawn 1n and then compressed and upon the completlon of compressing ignited by any suitable form of igniter.

The present engine is shown as a fourcycle two cylinder engine 1 and 2, each cylinder having a suitable casing 3 which forms a water jacket around the c linder for cooling purposes, the said cylin ers bemg supported by suitable frame work 4.-

Located in each cylinder is a piston 5.

The pistons 5 are connected by suitable con necting rods 6 to crank shaft journaled in the frame Work.

Each piston is suitably provided with packing rings 8 to form an air-tight cohnection with the walls of its piston cylinder.

Leading to each cylinder is a pipe or passage 9 for the admission of warmed air from around exhaust pipe 10 passin through valve11 and holes '12, the heate air passlng the oil jet 13, causing the oil to spray into passage 14, the oil being supplied to the 011 jet 13 by means of supply floats 15 and 16. A cook 17 to use the oil from either supply float 15 or 16 as may be desired. The air and oil mixture then passes through the valve 37 controlled by the governor mechanism 18, which is connected to the crank shaft 7 by belt or chain 19. The oil and air mixture then passes to the exhaust heated inlet pipe 20, the heat being supplied by admitting exhaust from the exhaust pipe 10 to pipe 21, which carried the hot exhaust to casing 22 which surrounds the inlet pipe 20, thereby heating the inlet pipe 20. A small hole 23 is pro- The exhaust that passes through the small hole 23 mixes with the oil and air mixture and then passes to the-cylinder through the inlet valve 24 which is held closed bythe suction stroke supplying hot exhaust gases to the air and oil mixture within the cylinder furnishing the heat necessary to gasify the heavier oil or fluid, also to reduce the excess of air in the explosive mixture thereby increasing its explosive temperature.

The exhaust passage is shown communicating with the atmosphere by means of pipe or passage 10. The exhaust valve 27, which is held closed by spring 34 is opened by a suitable cam carried by cam shaft 26 suitably supported in the frame work.

Theigniters 28 are .connected by suitable commutators 35, being arranged that the spark may be advanced orretarded at the will. of the operator.

Inasmuch asmy present improvements relate chiefly to features of construction not requiring any particular kind of crankshaft or connections therefrom to the pistons or the cylinder,-I have herein, and particularly in some of the claims, employed the term Piston Mechanism for indicating that part of the e ine which comprises the pi's "tons in the cy inder respectively and some suitable meansfor connecting such pistons with transmitting devices suitable for delivering the power from the engine for use. Having thus described my invention, I claim:

1. In an engine of the character described, the combination with a cylinder provided with passages for admitting fresh combustible material thereto and discharging the exhaust gases therefrom, of means for simultaneously reintroducing said exhaust into the cylinder through each of said passages. 2. In an engine of the character described, the combination with a cylinder provided with passages for admitting fresh combustible material thereto, and discharging the exhaust gases therefrom, of valve mechanism ble material thereto and exhaust gases there- 1 from, ofmeans for reintroducing different amounts of the exhaust gases into the cylin der through said passages.

4. In an engine of the character described,

the combination with a cylinder provided with passages for admitting fresh combustible material thereto and exhaust gases therefrom piston mechanism for said cylinder, means for introducing a mixture of said material and a small amount of said gases into the cylinder through said admission passage during substantially the full suction stroke of said piston, and means for reintroducing a large amount of the exhaust gases into the cylinder through said exhaust passage during the completion of said stroke.

5. In an engine of the character described, the combination with a cylinder provided with passages for the admission of a combustible fluid thereto and the discharge of the exhaust gases therefrom, piston mechanism for said cylinder, a chamber surrounding said fluid intake passage and communicating with said exhaust gas passage, a passage connecting said intake passage .with said chamber whereby a small amount of the exhaust gasesmay be mixed with said fluid and introduced into the cylinder during the suction stroke ofsaid piston, and means for reintroducing the exhaust gases into the cylinder from said exhaust passage during the final period of said stroke.

Signed at #4714 6th Avenue N. E.,

Seattle, IVashington, this 23 day of April, 1920.

AUGUSTUS GQPACE. Witnesses:

C. P. DUNN, A. L. ANDERSON. 

